多核化枢纽港集疏运系统优化研究

根据上海国际航运中心的区域港口布局特征,在基于广义费用最小化的港口集疏运系统优化模型基础上,通过分析建立了包括公路、水路、铁路等多种运输方式的路段和转运枢纽广义费用函数,标定了主要参数,并借助货运分析软件STAN开展综合网络平衡分配,得到了主要枢纽港的吞吐量规模及分布的结果.结果表明,上海国际航运中心呈现多核化发展态势,主枢纽港上海港综合服务功能增强,在水路分担比例不断提高的同时,公路集疏运系统仍需扩大运输组织范围.

Study on the Optimization of the Freight Collection and Distribution System of Multi-center Hub Ports

In accordance with the layout of Shanghai international shipping center and based on the optimization model for the freight collection and distribution system of ports with minimized generalized cost,this paper established a generalized cost function for road sections of various transportation forms including highway,waterway and railway as well as for transfer hubs.Major parameters were defined,the freight analyzing software STAN was used to realize the balanced distribution of the overall network and data concerning the handling capacity and distribution of major hub ports was thus obtained.The result showed that Shanghai international shipping center is developing into a multi-center port,that the overall service capacity for major hub ports has been enhanced and that though the proportion of waterway freight transportation is on the rise,the highway freight collection and distribution system still needs to expand its transportation scale.